Tool holder with side clamp



- 19 18 171 7 3 F I!" F a ,flnmnmlllilllllll a Oct. 25 1927.'v

. TOOL 1101mm wmi sing CLAMP Filed Dec. 18. 1924 I 1,64s4.9&.". o. sEvERsoN Patented oc zs, 1927.

finip icafion filed Decernbe'r 18;1924. seriarlhof756;222

I My invention relates-to "cutting tools'haw inggdetachable cutting members and particu-' larly to the means for securely clamping the detachable cutting member s" in'the holders.

One object of my invention is to provide a tool-holder having; a'detach'able cutting member secured theretolin such a manner as not only to maintain the strength of the tool but also to reduce thedistance between the support for the body portion of the holder and'the' point ofsuppo'rt for the 'de-' t'a'chable' cutting member on the holder;

Another obj exit of my invention is to' pro-1 Vide a tool-holdenhaying 'a ,detachablecutoperatei'the clamping mechanism from the sideofthe holder. "f j lathe tools .and-in; cutting jtool's for member that shall have: the clamping mechanisn 'in'ounted jon the' holder at the side of the cutting member and'that; shall lnalny machine tools, it is ery desirable to provide a detachable cutting I'nernberwhich is'in'serted ina siiitable "holder." The cutting inelnber is formed [of snitablesteel, which is adapted to Withstand the cutting operation and the holder i portion, which is. mounted in a "suitable toolgs'upport, iscomposed' of any suitable material which." will give th'e tool the required strengthg 'iIt is necessary to clamp the cutting member to the holder 1 in such: manner as to insure against either a movement of rotation or {a rectilinear income;- inent of the cutting member with respectj'to the holder during'a cutting operation. I I

In cutting 1 tools of the type under consi'deration, the holderis'supported in atool= I The ,so positioning of the clamp ng mechanism nsures against'fa" weakened ne c kf portionon the holder between the cuttingme'mberand the pointof support for the holder; Moreover, the so positioning of theclamping'mechanism serves to sl iorten the distance between the cuttihg' edge ofthetool andtlie point at which the holder may be 'nionnted', on a tool supportiflt is also an important feature in a cutting tool icons'tructed in accordance post at a -point located as close as convenientto the end of the holder'whioh carries the' erfin the holder is; located to the.

with my inventionto "have the V \nechanislir operated frointhe I side of the tool-hol'deri s- 1 Other objects and a'dvantages'wilhb part indicated 7 in the following description and in partrendereda'pparent' therefro'm m" connection with the annexed drawings;

To enable others s'k'lled in the-art sofully that they may embody the same-in thejvarfl to apprehend" the underlying ram -es hereof t ousj; ways conteniplatedby I this invention; e drawings" depicting a preferredftypic'al 0011 stru ction have been annexedjas apart, of this disclosure and, *iii such d awingsyfrlike char:

acters of reference denote 'c'orresponding parts throughoutiallithe yiews', of-;which:;

Fig l'i'san isometricfyiew'of atool-holder hayinga sideclam-ping inechanismand con} 'structe'd' in accordance with 'my invention.

Fig-2 is'a plan View partiallyin sectionof the tool-holderfshown in Fig. Fig-.3 is

a sectional-view along the line 3-3 ofFig} 2:

Fig, 4- is a 1an' view of a-'cutting'memberv adapted to be; insertedFinthe" tool-holder, Figs. 5 and 6 are respectively end-elevational V the cutting and" side elevational views of member shown inf'Fig. 4; Y

R'eferring to'the drawings; aciitting tool is 'illnstrated comprisingia holder or body P t on 1' in which is mounted cutting m The holder 1 comprises'an clan:

gated rectangular section 3 which'may-fbei secured in anyrsuitablemanner ina tool-y support or post" not shown); An enlarged head portimr{4 is formed on thdhold'er for. carrying not only the cutting'memberfl but alsoforcarryingthe'clarnping mechanismh l which serves fo holding ber "securely in position. The holder l 'is preferably forged from niaterial which will have fsnlhci'ent ,strength to; withstand the 'bendingistrains; to which, it.

in'g the f:iitt ing operation. "5

The ma ortions of'the ho1derf-1 is ciit I away at Gfor ire'cei'ving abase portion- 7 of the cuttingn'iember'a. A hole'8,'fwhich' eX- the 1 cutting memtends intothe cut-away portion 6' isfQrmed forreceiving a'stem or projection '9/onfthe cums xmembe 2. Preferably the projec-j The cutting: member 2 comprises the base por ion '7; the" stein or 'pro ecting p em c and "a head portionv 10 which ca i s guti ;ingd h' b e or n w 2 and accordingly no opening is formed in the head of' theholder and serves: as a support for the cutting member; A side surface 12 on the base portion isformed flat.

inorder to be engaged by the clamping mechanism 5 for holding the cutting member securely in position. The engagement of the. clamping mechanism 5 With the flat surface 12 serves not only to hold the cutting member against any rectilinear movement in thetool-holder but also serves to prevent any rotative movement of. the cutting member in the holder about the stem or projection 9 as acenter. v [Referring to. Fig. 2, of thedrawing, it willbe noted that the fiat surface 12- of the cutting member not only engages the-clampingmechanisin 5 but also engages aflat surface113 onthe tool-head 4. A second flat 1 surface l tisformed on the cutting member I a connected: to the headesand servesto engage the plunger, 1.6; for forcing it into engage: ment with thefiat surface 12 on the cutting into. a; slot 19 formed in theoplunger.

thecutting member 2 and is held in position by meanslof aset screw 18 which proj e eps e slot 19 isof suflicient lengthto permit a limltGd.-;II1OV6IIlI117 of the plunger with respect to the head. An integral projecting pin 20 on the plunger 16 extendsxintoa clamping,

bolt2l Theclamping bolt 21 is threadably member. a o I a Q In the above constructlon, 1t Wlll'bB noted theclamping mechanism, which comprises the plunger 16 and the bolt 21, are entirely disposed-tofthe side of the cutting member theholder3-betweenthe point of support forthecutting member 2vand the point of support of the holder on the tool; post. Moreover, attention is called to; the fact that the clamping mechanism is operated solely from the side of the holder. Althoughonly a left, hand tool holderis shown on the drawing, it is to be, understood my invention is; equally applicable to tool holders; of either hand 7 e V 7 Without further analysis, the foregoing will, so fully reveal the gist of this invention that others; can, by applying current knowl: edge, readily adapt it for various 'lllll'llZfi? tions; by retaining one or more ofthe featuresthat, from-the standpoint of the prior art, fairly constituteessential characteristicsofeither the generic or. specific aspects of this invention, and, therefore, such adaptations should be, and are intended; to be, comprehended within the meaning and range of equivalency of the following 'claims': i

i Having thus revealed this invention, 1 claim as, new and desire to secure the following combinations and elements, or equivalents thereof, by Letters Patent of the United States:

1. A cutting'tool, comprising a holder for mounting in a support, .a detachable cuttingmember mounted in one end of said holder, a plunger movable horizontaland trans} versely Withrespect to the holder for, engaging side of said cutting member, said side extending longitudinally of said holder, said plunger having a limited movement in said holder, and a screw-member secured to the holder and engaging. the plunger for forcing it into clamping engagement with; the cutting member to hold, it securely in, position and to prevent any rotative or rectilinear movement thereby.

- 2. A cutting tool, comprisingaholder for mounting in a support, a detachable. cutting member mounted in one end? of said holder, a plunger for engaging the side of said cut-, ting member, a pin pro ect1ng. througha portion of the holder and so fitted to a, groove inthe plunger as to permit a limited movement of the plunger in, a lateral direction with respect to the holder, and ascrew member secured to the holder and engaging the plunger for forcing it into clamping engag'e'- ment with the cutting member. 1 I

3. A cutting't'ool, comprising'a holder for mounting in: asupporthaving an opening formed in saidzholder near one end thereof, aplu-nger mounted in the side of the holder, and ascrew: member secured to the side, of

" the holder and engaging said plunger for forcing it into clamping engagement with the side of a cutting member adapted to be inserted in said opening, said side-extending substantially longitudinally of said holder. I 4, A cutting tool, comprising a holder for mounting in a support having'a hole formed in said holdernear one end thereof,1a plunger mounted in, the holder and. adapted to be movedv laterally of said holder and substantially at right anglesito said hole, a pinpro; jecting through a portion of the holder. and so fitted to a groove in the plunger as to in said lateral direction, and ascrewfmember secured to theside of thej holder and engaging said plunger for forcingit into clamping engagement with the side ofalcu'tinc permit a limited. movement of the plunger tingmember adapted to be inserted .infsaid I hole. v I t 5. A cutting tool, comprising a holder for mounting in a support, a detachable cutting member having a stem portion fitted toja hole formed, in the holderand a flat surface formed above the stem portion; a plunger screw member mounted in the side of the holder for forcing the plunger into; engagement with the cutting member, said plunger and screw member being operated from the vl0 side'of the holder. 1 1

6. A cutting tool, comprising'a holder for mounting in a support having an opening formed in said holder near one end thereof; a cutting member having a portion thereof.

inserted in said opening, said cutting member having two adjoining flat surfaces arranged at an angle to each other and positioned adjacent to similar surfaces on the holder; a plunger mounted in the side of the V holder; and means for moving the plunger laterally with respect 'to the holder fo-ren- 1 'i gaging oneiof the flat surfaces on the out: ting member'to clamp the member in;posi-,

tion. V I v "7'. In 'a cutting tool,a holder having an opening in the outer end thereof and adjoining bearing surfaces arranged at; an, angle to each other; a cutting member mounted insaid'openingand having surf d d v o to efngage said adjoining surfaces on said holder; a plunger mounted inan opening 7 in the side of said holderiand adapted to engage a longitudinally extending surface of said cutting member and means for moving saidplunger transversely of the holder to cause such "engagement. s

In Witness whereof, scribed my name.

' h OLE sEvE soN.

Ihave hereunto sub- I 

